9006698473889 has 2 divisors, whose sum is σ = 9006698473890. Its totient is φ = 9006698473888.

The previous prime is 9006698473859. The next prime is 9006698473921. The reversal of 9006698473889 is 9883748966009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7354401610000 + 1652296863889 = 2711900^2 + 1285417^2 .

It is an emirp because it is prime and its reverse (9883748966009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9006698473889 - 2²⁸ = 9006430038433 is a prime.

It is a super-2 number, since 2×9006698473889² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9006698473859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4503349236944 + 4503349236945.

It is an arithmetic number, because the mean of its divisors is an integer number (4503349236945).

Almost surely, 2^{9006698473889} is an apocalyptic number.

It is an amenable number.

9006698473889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9006698473889 is an equidigital number, since it uses as much as digits as its factorization.

9006698473889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128701952, while the sum is 77.

The spelling of 9006698473889 in words is "nine trillion, six billion, six hundred ninety-eight million, four hundred seventy-three thousand, eight hundred eighty-nine".